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Dual flush toilet devices

a technology of toilets and toilets, applied in the direction of valves, mechanical devices, transportation and packaging, etc., can solve the problems of premature closing of flapper valves, etc., and achieve the effect of less water and more water

Inactive Publication Date: 2013-09-12
HAN JAMES T
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a dual flush device and a float assembly for use in a toilet tank. The device includes a first flush handle, a second flush handle, a shaft, a stop member, a shank, a housing, a shaft housing, a hand-tightening nut, and a flush lever. The device is vertically supported by the tank wall and axially restrained from movement by the nut. The second flush handle is built as a single unit and is supported by the first flush handle. The device also includes a mounting structure for the float assembly that can be installed on the overflow tube of the toilet tank. The invention allows for a full flush by depressing the second flush handle and a partial flush by holding down the second flush handle. The invention also includes a screw and a threaded hole for adjusting the downward rotation of the second flush handle. The invention provides a more efficient flushing experience and is easy to install and adjust.

Problems solved by technology

When activated, it will prematurely close the flapper valve.

Method used

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Examples

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Embodiment Construction

[0050]The present invention provides a dual flush device 1 and a float assembly 73 or 76 for use in a toilet tank 16.

[0051]In FIG. 1, an embodiment of dual flush device 1 of the present invention has been installed in a toilet tank 16 through a built-in hole 29 on the front wall of tank 16 behind a flush handle knob 4. It replaces the original flush lever assembly to retrofit a conventional single flush toilet to a dual flush toilet. The dual flush device 1 is shown in an activated position when a first flush handle 2 is depressed to lift flush lever 5 and open a flapper flush valve 10. Inside toilet tank 16, there are flapper valve 10, which is connected at an eyelet 12 by a chain 8 to flush lever 5 of dual flush device 1 and is pivotally mounted on two opposite projections 13 on an overflow tube 9, and an inclined flush valve seat 14 to mate with flapper valve 10. Connected to valve seat 14 is a discharge pipe 15 into which the tank water is drained into a toilet bowl (not shown)....

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PUM

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Abstract

A dual flush device is disclosed to provide a full flush for removing solid waste and a water-saving partial flush for removing liquid or light solid waste in a toilet. It includes a first flush handle attached to a shaft to raise a lever to open a flapper valve, and a second flush handle that overlaps the first handle and opens the flapper valve through the first handle. A float assembly is disclosed to be used either with the dual flush device or with the original single flush lever assembly to prematurely close an opened flapper valve and reduce water consumption. Using the original flapper valve in a conventional toilet tank, a dual flush function is achieved by any of the three implementation choices: (1) the dual flush device alone; (2) the dual flush device and a float assembly; and (3) a float assembly alone.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of priority of U.S. Provisional Patent Application No. 61 / 634,974, filed Mar. 9, 2012, which is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention relates generally to toilets and toilet flushing devices, mechanisms and systems. More specifically, the present invention relates to dual flush toilet devices.BACKGROUND OF THE INVENTION[0003]1. Description of the Prior Art[0004]Water conservation is essential in addressing water shortage caused by climate change and population increase in many parts of the world. Since water consumption in toilet flushing is an important contributor to the household water usage, manufacturers have been making better toilets using less water in a full flush than those made a few decades earlier. Meanwhile, about four out of five toilet flushes remove mainly liquid waste (such as urine and a small amount of toilet paper) from th...

Claims

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Application Information

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IPC IPC(8): E03D3/12F16K31/18
CPCE03D1/142E03D1/306E03D5/094Y10T137/7358Y02A20/40
Inventor HAN, JAMES T.
Owner HAN JAMES T
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